https://bugs.kde.org/show_bug.cgi?id=359950
Tom Hughes <t...@compton.nu> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |INVALID
Status|UNCONFIRMED |RESOLVED
CC| |t...@compton.nu
--- Comment #1 from Tom Hughes <t...@compton.nu> ---
Please read the "limitations" section of the manual at
http://valgrind.org/docs/manual/manual-core.html#manual-core.limits especially
the part about x86 floating point, and in particular this:
"Precision: There is no support for 80 bit arithmetic. Internally, Valgrind
represents all such "long double" numbers in 64 bits, and so there may be some
differences in results."
That is likely why your program behaves differently under valgrind.
Your program is essentially not well defined anyway though, as floating point
calculations are always imprecise so you should not expect to be able to
compare a floating point result for equality with an integer version of the
same calculation.
--
You are receiving this mail because:
You are watching all bug changes.
